Greetings! I made a big mistake plugging my guitar amp into the headphone jack in my wife's almost newiPad 2! was using the Garageband app. The amp output volume was not very high but I heard something from the speaker like a crackle/pop. Since then the sound coming from both the speaker and through the headphones is distorted, like white noise or crackling. Can still hear music but the noise is overwhelming. Have done a restart but nothing is working. Haven't been able to find the same problem in the forums, please help!